| elf32-i386.c (104840) | elf32-i386.c (107497) |
|---|---|
| 1/* Intel 80386/80486-specific support for 32-bit ELF 2 Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 3 Free Software Foundation, Inc. 4 5This file is part of BFD, the Binary File Descriptor library. 6 7This program is free software; you can redistribute it and/or modify 8it under the terms of the GNU General Public License as published by --- 4 unchanged lines hidden (view full) --- 13but WITHOUT ANY WARRANTY; without even the implied warranty of 14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15GNU General Public License for more details. 16 17You should have received a copy of the GNU General Public License 18along with this program; if not, write to the Free Software 19Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ 20 | 1/* Intel 80386/80486-specific support for 32-bit ELF 2 Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 3 Free Software Foundation, Inc. 4 5This file is part of BFD, the Binary File Descriptor library. 6 7This program is free software; you can redistribute it and/or modify 8it under the terms of the GNU General Public License as published by --- 4 unchanged lines hidden (view full) --- 13but WITHOUT ANY WARRANTY; without even the implied warranty of 14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15GNU General Public License for more details. 16 17You should have received a copy of the GNU General Public License 18along with this program; if not, write to the Free Software 19Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ 20 |
| 21/* $FreeBSD: head/contrib/binutils/bfd/elf32-i386.c 104840 2002-10-11 06:10:28Z obrien $ */ | 21/* $FreeBSD: head/contrib/binutils/bfd/elf32-i386.c 107497 2002-12-02 09:22:58Z obrien $ */ |
| 22 23#include "bfd.h" 24#include "sysdep.h" 25#include "bfdlink.h" 26#include "libbfd.h" 27#include "elf-bfd.h" 28 29static reloc_howto_type *elf_i386_reloc_type_lookup --- 471 unchanged lines hidden (view full) --- 501 from external routines. eg. elf_i386_check_relocs is called 502 early in the link process, elf_i386_finish_dynamic_sections is 503 one of the last functions. */ 504 505 506/* The name of the dynamic interpreter. This is put in the .interp 507 section. */ 508 | 22 23#include "bfd.h" 24#include "sysdep.h" 25#include "bfdlink.h" 26#include "libbfd.h" 27#include "elf-bfd.h" 28 29static reloc_howto_type *elf_i386_reloc_type_lookup --- 471 unchanged lines hidden (view full) --- 501 from external routines. eg. elf_i386_check_relocs is called 502 early in the link process, elf_i386_finish_dynamic_sections is 503 one of the last functions. */ 504 505 506/* The name of the dynamic interpreter. This is put in the .interp 507 section. */ 508 |
| 509 510#ifndef ELF_DYNAMIC_INTERPRETER | |
| 511#define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1" | 509#define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1" |
| 512#endif | |
| 513 | 510 |
| 514 | |
| 515/* The size in bytes of an entry in the procedure linkage table. */ 516 517#define PLT_ENTRY_SIZE 16 518 519/* The first entry in an absolute procedure linkage table looks like 520 this. See the SVR4 ABI i386 supplement to see how this works. */ 521 522static const bfd_byte elf_i386_plt0_entry[PLT_ENTRY_SIZE] = --- 2094 unchanged lines hidden (view full) --- 2617 addl foo, %reg 2618 We change it into: 2619 movl $foo, %eax 2620 movl $foo, %reg 2621 addl $foo, %reg. */ 2622 BFD_ASSERT (rel->r_offset >= 1); 2623 val = bfd_get_8 (input_bfd, contents + rel->r_offset - 1); 2624 BFD_ASSERT (rel->r_offset + 4 <= input_section->_raw_size); | 511/* The size in bytes of an entry in the procedure linkage table. */ 512 513#define PLT_ENTRY_SIZE 16 514 515/* The first entry in an absolute procedure linkage table looks like 516 this. See the SVR4 ABI i386 supplement to see how this works. */ 517 518static const bfd_byte elf_i386_plt0_entry[PLT_ENTRY_SIZE] = --- 2094 unchanged lines hidden (view full) --- 2613 addl foo, %reg 2614 We change it into: 2615 movl $foo, %eax 2616 movl $foo, %reg 2617 addl $foo, %reg. */ 2618 BFD_ASSERT (rel->r_offset >= 1); 2619 val = bfd_get_8 (input_bfd, contents + rel->r_offset - 1); 2620 BFD_ASSERT (rel->r_offset + 4 <= input_section->_raw_size); |
| 2625 if (val != 0xa1) 2626 { 2627 BFD_ASSERT (rel->r_offset >= 2); 2628 type = bfd_get_8 (input_bfd, contents + rel->r_offset - 2); 2629 } | |
| 2630 if (val == 0xa1) 2631 { 2632 /* movl foo, %eax. */ | 2621 if (val == 0xa1) 2622 { 2623 /* movl foo, %eax. */ |
| 2633 bfd_put_8 (output_bfd, 0xb8, contents + rel->r_offset - 2); | 2624 bfd_put_8 (output_bfd, 0xb8, contents + rel->r_offset - 1); |
| 2634 } | 2625 } |
| 2635 else if (type == 0x8b) | 2626 else |
| 2636 { | 2627 { |
| 2637 /* movl */ 2638 BFD_ASSERT ((val & 0xc7) == 0x05); 2639 bfd_put_8 (output_bfd, 0xc7, 2640 contents + rel->r_offset - 2); 2641 bfd_put_8 (output_bfd, 0xc0 | ((val >> 3) & 7), 2642 contents + rel->r_offset - 1); | 2628 BFD_ASSERT (rel->r_offset >= 2); 2629 type = bfd_get_8 (input_bfd, contents + rel->r_offset - 2); 2630 switch (type) 2631 { 2632 case 0x8b: 2633 /* movl */ 2634 BFD_ASSERT ((val & 0xc7) == 0x05); 2635 bfd_put_8 (output_bfd, 0xc7, 2636 contents + rel->r_offset - 2); 2637 bfd_put_8 (output_bfd, 2638 0xc0 | ((val >> 3) & 7), 2639 contents + rel->r_offset - 1); 2640 break; 2641 case 0x03: 2642 /* addl */ 2643 BFD_ASSERT ((val & 0xc7) == 0x05); 2644 bfd_put_8 (output_bfd, 0x81, 2645 contents + rel->r_offset - 2); 2646 bfd_put_8 (output_bfd, 2647 0xc0 | ((val >> 3) & 7), 2648 contents + rel->r_offset - 1); 2649 break; 2650 default: 2651 BFD_FAIL (); 2652 break; 2653 } |
| 2643 } | 2654 } |
| 2644 else if (type == 0x03) 2645 { 2646 /* addl */ 2647 BFD_ASSERT ((val & 0xc7) == 0x05); 2648 bfd_put_8 (output_bfd, 0x81, 2649 contents + rel->r_offset - 2); 2650 bfd_put_8 (output_bfd, 0xc0 | ((val >> 3) & 7), 2651 contents + rel->r_offset - 1); 2652 } 2653 else 2654 BFD_FAIL (); | |
| 2655 bfd_put_32 (output_bfd, -tpoff (info, relocation), 2656 contents + rel->r_offset); 2657 continue; 2658 } 2659 else 2660 { 2661 unsigned int val, type; 2662 --- 722 unchanged lines hidden (view full) --- 3385#define elf_backend_gc_mark_hook elf_i386_gc_mark_hook 3386#define elf_backend_gc_sweep_hook elf_i386_gc_sweep_hook 3387#define elf_backend_grok_prstatus elf_i386_grok_prstatus 3388#define elf_backend_grok_psinfo elf_i386_grok_psinfo 3389#define elf_backend_reloc_type_class elf_i386_reloc_type_class 3390#define elf_backend_relocate_section elf_i386_relocate_section 3391#define elf_backend_size_dynamic_sections elf_i386_size_dynamic_sections 3392 | 2655 bfd_put_32 (output_bfd, -tpoff (info, relocation), 2656 contents + rel->r_offset); 2657 continue; 2658 } 2659 else 2660 { 2661 unsigned int val, type; 2662 --- 722 unchanged lines hidden (view full) --- 3385#define elf_backend_gc_mark_hook elf_i386_gc_mark_hook 3386#define elf_backend_gc_sweep_hook elf_i386_gc_sweep_hook 3387#define elf_backend_grok_prstatus elf_i386_grok_prstatus 3388#define elf_backend_grok_psinfo elf_i386_grok_psinfo 3389#define elf_backend_reloc_type_class elf_i386_reloc_type_class 3390#define elf_backend_relocate_section elf_i386_relocate_section 3391#define elf_backend_size_dynamic_sections elf_i386_size_dynamic_sections 3392 |
| 3393#ifndef ELF32_I386_C_INCLUDED | |
| 3394#include "elf32-target.h" | 3393#include "elf32-target.h" |
| 3395#endif | |